- Product overview - Nylon-insert lock nut: made from stainless steel 304, providing long-term durability and strong corrosion resistance compared with ordinary steel lock nuts. The nylon insert grips the bolt thread to resist loosening. - Jam (counter) nut: heavy-duty stainless steel counter/ jam nut suitable for indoor and outdoor use. The material offers superior rust resistance for damp environments. - Nylon-insert jam-nut option: the jam nut design with a nylon insert further reduces loosening caused by vibration and torque, improving joint security in demanding applications. - Key benefits — why you need these nuts - Reliable anti-loosening: the nylon insert creates friction on the bolt thread to prevent nuts from backing off under vibration or torque. - Corrosion resistance: stainless steel 304 resists rust in humid or outdoor settings, extending service life and reducing maintenance. - Strong and durable: heavy-duty construction makes these nuts suitable where a secure, lasting connection is required. - Versatile use: suitable for a wide range of applications where standard threaded fasteners are used. - Important attributes - Material: stainless steel 304 (high-grade alloy known for durability and corrosion resistance). - Function: nylon-insert locking action for vibration resistance; jam/counter nut option for added tightening security. - Compatibility: intended for use with matching threaded bolts, studs, and threaded rods (use the correct thread size and pitch for a secure fit). - Performance: maintains clamping force under vibration and in damp environments; superior to plain carbon steel in rust resistance. - Typical applications / use scenarios - Outdoor decking, railings, and marine fittings where moisture exposure requires rust-resistant fasteners. - Machinery, engines, or equipment subject to vibration and torque where a secure, vibration-resistant nut is critical. - Wood construction and furniture assembly in damp or high-humidity environments where corrosion resistance and reliable fastening are needed. - Practical notes - Use the matching thread size and torque specifications for the bolt and nut to ensure proper engagement and prevent damage to the nylon insert. - For repeated assembly/disassembly, inspect the nylon insert for wear; replace nuts if the locking action is reduced. - Choose the jam nut configuration when a low-profile or secondary locking nut is needed for additional security. These stainless steel 304 nylon-insert locking nuts and jam nuts deliver corrosion-resistant, vibration-resistant fastening for indoor and outdoor applications where durability and reliable joint security are required.